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Femmer C, Bechtold M, Panke S. Semi‐rational engineering of an amino acid racemase that is stabilized in aqueous/organic solvent mixtures. Biotechnol Bioeng 2020; 117:2683-2693. [DOI: 10.1002/bit.27449] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/26/2020] [Accepted: 05/31/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Christian Femmer
- Department of Biosystems Science and EngineeringETH Zurich Basel Switzerland
| | - Matthias Bechtold
- Department of Biosystems Science and EngineeringETH Zurich Basel Switzerland
| | - Sven Panke
- Department of Biosystems Science and EngineeringETH Zurich Basel Switzerland
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Harriehausen I, Wrzosek K, Lorenz H, Seidel-Morgenstern A. Assessment of process configurations to combine enantioselective chromatography with enzymatic racemization. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00231-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractEnantioselective chromatography is nowadays a reliable tool for single enantiomer production from a racemate. The recovery of the distomer by racemization and recycling is a promising method to tackle the 50% yield constraint and to increase the productivity. In this paper three process configurations are compared. The production of enantiopure mandelic acid and methionine enantiomers exploiting different enzymes for racemization are evaluated as part of different chromatographic process configurations. First, the benefits of conventional simulated moving bed (SMB) chromatography in contrast to a single column batch separation unit are assessed in integrated configurations. Then, a concept of coupling the racemization with a simpler three-zone SMB unit, where one regeneration zone is removed, is evaluated.
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Sreedhar B, Shen B, Li H, Rousseau R, Kawajiri Y. Optimal Design of Integrated SMB-Crystallization Hybrid Separation Process Using a Binary Solvent. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.6b00294] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Balamurali Sreedhar
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
| | - Baochun Shen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, 1168 West Chun Rong Road, Yu Hua Street, Cheng Gong New City, Kunming, Yunnan 650500, P.R. China
| | - Huayu Li
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
| | - Ronald Rousseau
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
| | - Yoshiaki Kawajiri
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
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Fuereder M, Femmer C, Storti G, Panke S, Bechtold M. Integration of simulated moving bed chromatography and enzymatic racemization for the production of single enantiomers. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2016.05.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Femmer C, Bechtold M, Roberts TM, Panke S. Exploiting racemases. Appl Microbiol Biotechnol 2016; 100:7423-36. [DOI: 10.1007/s00253-016-7729-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/03/2016] [Accepted: 07/04/2016] [Indexed: 01/11/2023]
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Simulated moving bed chromatography for the separation of ethyl esters of eicosapentaenoic acid and docosahexaenoic acid under nonlinear conditions. J Chromatogr A 2015; 1425:189-97. [DOI: 10.1016/j.chroma.2015.11.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 10/23/2015] [Accepted: 11/10/2015] [Indexed: 11/20/2022]
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